feature: Implement first backend.
This commit is contained in:
greysoh
parent
69498c2a6e
commit
c8f317b0e5
7 changed files with 465 additions and 29 deletions
145
package-lock.json
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145
package-lock.json
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@ -11,11 +11,13 @@
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"dependencies": {
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"@prisma/client": "^5.13.0",
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"bcrypt": "^5.1.1",
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"fastify": "^4.26.2"
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"fastify": "^4.26.2",
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"node-ssh": "^13.2.0"
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},
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"devDependencies": {
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"@types/bcrypt": "^5.0.2",
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"@types/node": "^20.12.7",
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"@types/ssh2": "^1.15.0",
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"nodemon": "^3.0.3",
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"prisma": "^5.13.0",
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@ -165,6 +167,24 @@
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@ -284,6 +304,14 @@
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@ -340,6 +368,14 @@
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"dependencies": {
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"tweetnacl": "^0.14.3"
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@ -393,6 +429,15 @@
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"ieee754": "^1.2.1"
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@ -454,6 +499,20 @@
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"node": ">= 0.6"
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@ -858,6 +917,17 @@
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"node": ">=0.12.0"
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"node_modules/is-stream": {
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"funding": {
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"node_modules/json-schema-ref-resolver": {
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@ -972,6 +1042,12 @@
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"version": "5.1.0",
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"resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-5.1.0.tgz",
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@ -996,6 +1072,22 @@
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}
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}
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},
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"node_modules/node-ssh": {
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"version": "13.2.0",
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"dependencies": {
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"is-stream": "^2.0.0",
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"make-dir": "^3.1.0",
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"sb-promise-queue": "^2.1.0",
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"sb-scandir": "^3.1.0",
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"shell-escape": "^0.2.0",
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"ssh2": "^1.14.0"
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},
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"engines": {
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"node": ">= 10"
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}
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"node_modules/nodemon": {
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"version": "3.0.3",
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"resolved": "https://registry.npmjs.org/nodemon/-/nodemon-3.0.3.tgz",
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"node": ">=10"
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"node_modules/safer-buffer": {
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"version": "3.1.0",
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"dependencies": {
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"engines": {
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"node": ">= 8"
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"node_modules/secure-json-parse": {
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"resolved": "https://registry.npmjs.org/secure-json-parse/-/secure-json-parse-2.7.0.tgz",
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"node": ">= 10.x"
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}
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},
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"node_modules/ssh2": {
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"version": "1.15.0",
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"hasInstallScript": true,
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"dependencies": {
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"asn1": "^0.2.6",
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"bcrypt-pbkdf": "^1.0.2"
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},
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"engines": {
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"node": ">=10.16.0"
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"optionalDependencies": {
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"cpu-features": "~0.0.9",
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"nan": "^2.18.0"
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},
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"node_modules/tweetnacl": {
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"version": "0.14.5",
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"resolved": "https://registry.npmjs.org/typescript/-/typescript-5.3.3.tgz",
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"devDependencies": {
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"@types/bcrypt": "^5.0.2",
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"@types/node": "^20.12.7",
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"@types/ssh2": "^1.15.0",
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"nodemon": "^3.0.3",
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"prisma": "^5.13.0",
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"typescript": "^5.3.3"
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"dependencies": {
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"@prisma/client": "^5.13.0",
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"bcrypt": "^5.1.1",
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"fastify": "^4.26.2"
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"fastify": "^4.26.2",
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"node-ssh": "^13.2.0"
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}
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}
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message?: string
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}
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export type ConnectedDevice = {
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export type ForwardRule = {
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sourceIP: string,
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sourcePort: number,
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destPort: number,
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protocol: "tcp" | "udp"
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destPort: number
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};
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export interface BackendInterface {
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new(): {
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addConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): void;
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removeConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): void;
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start(): Promise<boolean>,
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stop(): Promise<boolean>,
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export type ConnectedClient = {
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ip: string,
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port: number,
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connectionDetails: ForwardRule
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};
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getAllConnections(): {
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sourceIP: string,
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sourcePort: number,
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destPort: number,
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protocol: "tcp" | "udp"
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}[];
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export class BackendBaseClass {
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state: "stopped" | "stopping" | "started" | "starting";
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state: "stopped" | "running" | "starting";
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clients?: ConnectedClient[]; // Not required to be implemented, but more consistency
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logs: string[];
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probeConnectedClients: ConnectedDevice[],
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logs: string[]
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},
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constructor(parameters: string) {
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this.logs = [];
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this.clients = [];
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this.state = "stopped";
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}
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checkParametersConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): ParameterReturnedValue;
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checkParametersBackendInstance(data: string): ParameterReturnedValue;
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addConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): void {};
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removeConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): void {};
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async start(): Promise<boolean> {
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return true;
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}
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async stop(): Promise<boolean> {
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return true;
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};
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getAllConnections(): ConnectedClient[] {
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if (this.clients == null) return [];
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return this.clients;
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};
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static checkParametersConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): ParameterReturnedValue {
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return {
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success: true
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}
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};
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static checkParametersBackendInstance(data: string): ParameterReturnedValue {
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return {
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success: true
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}
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};
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}
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6
src/backendimpl/index.ts
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6
src/backendimpl/index.ts
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import type { BackendBaseClass } from "./base.js";
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import { SSHBackendProvider } from "./ssh.js";
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export const backendProviders: Record<string, typeof BackendBaseClass> = {
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"ssh": SSHBackendProvider
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};
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211
src/backendimpl/ssh.ts
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211
src/backendimpl/ssh.ts
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import { NodeSSH } from "node-ssh";
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import { Socket } from "node:net";
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import type { BackendBaseClass, ForwardRule, ConnectedClient, ParameterReturnedValue } from "./base.js";
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// Fight me (for better naming)
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type BackendParsedProviderString = {
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ip: string,
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port: number,
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username: string,
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privateKey: string
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}
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function parseBackendProviderString(data: string): BackendParsedProviderString {
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try {
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JSON.parse(data);
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} catch (e) {
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throw new Error("Payload body is not JSON")
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}
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const jsonData = JSON.parse(data);
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if (typeof jsonData.ip != "string") throw new Error("IP field is not a string");
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if (typeof jsonData.port != "number") throw new Error("Port is not a number");
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if (typeof jsonData.username != "string") throw new Error("Username is not a string");
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if (typeof jsonData.privateKey != "string") throw new Error("Private key is not a string");
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||||
|
||||
return {
|
||||
ip: jsonData.ip,
|
||||
port: jsonData.port,
|
||||
|
||||
username: jsonData.username,
|
||||
privateKey: jsonData.privateKey
|
||||
}
|
||||
}
|
||||
|
||||
export class SSHBackendProvider implements BackendBaseClass {
|
||||
state: "stopped" | "stopping" | "started" | "starting";
|
||||
|
||||
clients: ConnectedClient[];
|
||||
proxies: ForwardRule[];
|
||||
logs: string[];
|
||||
|
||||
sshInstance: NodeSSH;
|
||||
options: BackendParsedProviderString;
|
||||
|
||||
constructor(parameters: string) {
|
||||
this.logs = [];
|
||||
this.proxies = [];
|
||||
this.clients = [];
|
||||
|
||||
this.options = parseBackendProviderString(parameters);
|
||||
|
||||
this.state = "stopped";
|
||||
}
|
||||
|
||||
async start(): Promise<boolean> {
|
||||
this.state = "starting";
|
||||
this.logs.push("Starting SSHBackendProvider...");
|
||||
|
||||
if (this.sshInstance) {
|
||||
this.sshInstance.dispose();
|
||||
}
|
||||
|
||||
this.sshInstance = new NodeSSH();
|
||||
|
||||
try {
|
||||
await this.sshInstance.connect({
|
||||
host: this.options.ip,
|
||||
port: this.options.port,
|
||||
|
||||
username: this.options.username,
|
||||
privateKey: this.options.privateKey
|
||||
});
|
||||
} catch (e) {
|
||||
this.logs.push(`Failed to start SSHBackendProvider! Error: '${e}'`);
|
||||
this.state = "stopped";
|
||||
|
||||
// @ts-ignore
|
||||
this.sshInstance = null;
|
||||
|
||||
return false;
|
||||
};
|
||||
|
||||
this.state = "started";
|
||||
this.logs.push("Successfully started SSHBackendProvider.");
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
async stop(): Promise<boolean> {
|
||||
this.state = "stopping";
|
||||
this.logs.push("Stopping SSHBackendProvider...");
|
||||
|
||||
this.proxies.splice(0, this.proxies.length);
|
||||
|
||||
this.sshInstance.dispose();
|
||||
|
||||
// @ts-ignore
|
||||
this.sshInstance = null;
|
||||
|
||||
this.logs.push("Successfully stopped SSHBackendProvider.");
|
||||
this.state = "stopped";
|
||||
|
||||
return true;
|
||||
};
|
||||
|
||||
addConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): void {
|
||||
const connectionCheck = SSHBackendProvider.checkParametersConnection(sourceIP, sourcePort, destPort, protocol);
|
||||
if (!connectionCheck.success) throw new Error(connectionCheck.message);
|
||||
|
||||
const foundProxyEntry = this.proxies.find((i) => i.sourceIP == sourceIP && i.sourcePort == sourcePort && i.destPort == destPort);
|
||||
if (foundProxyEntry) return;
|
||||
|
||||
console.log("connection added");
|
||||
|
||||
(async() => {
|
||||
await this.sshInstance.forwardIn("0.0.0.0", destPort, (info, accept, reject) => {
|
||||
const foundProxyEntry = this.proxies.find((i) => i.sourceIP == sourceIP && i.sourcePort == sourcePort && i.destPort == destPort);
|
||||
if (!foundProxyEntry) return reject();
|
||||
|
||||
const client: ConnectedClient = {
|
||||
ip: info.srcIP,
|
||||
port: info.srcPort,
|
||||
|
||||
connectionDetails: foundProxyEntry
|
||||
};
|
||||
|
||||
this.clients.push(client);
|
||||
|
||||
const srcConn = new Socket();
|
||||
|
||||
srcConn.connect({
|
||||
host: sourceIP,
|
||||
port: sourcePort
|
||||
});
|
||||
|
||||
// Why is this so confusing
|
||||
const destConn = accept();
|
||||
|
||||
destConn.on("data", (chunk: Uint8Array) => {
|
||||
srcConn.write(chunk);
|
||||
});
|
||||
|
||||
destConn.on("exit", () => {
|
||||
this.clients.splice(this.clients.indexOf(client), 1);
|
||||
srcConn.end();
|
||||
});
|
||||
|
||||
srcConn.on("data", (data) => {
|
||||
destConn.write(data);
|
||||
});
|
||||
|
||||
srcConn.on("end", () => {
|
||||
this.clients.splice(this.clients.indexOf(client), 1);
|
||||
destConn.close();
|
||||
});
|
||||
});
|
||||
})();
|
||||
|
||||
this.proxies.push({
|
||||
sourceIP,
|
||||
sourcePort,
|
||||
destPort
|
||||
});
|
||||
};
|
||||
|
||||
removeConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): void {
|
||||
const connectionCheck = SSHBackendProvider.checkParametersConnection(sourceIP, sourcePort, destPort, protocol);
|
||||
if (!connectionCheck.success) throw new Error(connectionCheck.message);
|
||||
|
||||
const foundProxyEntry = this.proxies.find((i) => i.sourceIP == sourceIP && i.sourcePort == sourcePort && i.destPort == destPort);
|
||||
if (!foundProxyEntry) return;
|
||||
|
||||
const proxyIndex = this.proxies.indexOf(foundProxyEntry);
|
||||
this.proxies.splice(proxyIndex, 1);
|
||||
};
|
||||
|
||||
getAllConnections(): ConnectedClient[] {
|
||||
return this.clients;
|
||||
};
|
||||
|
||||
static checkParametersConnection(sourceIP: string, sourcePort: number, destPort: number, protocol: "tcp" | "udp"): ParameterReturnedValue {
|
||||
if (protocol == "udp") return {
|
||||
success: false,
|
||||
message: "SSH does not support UDP tunneling! Please use something like PortCopier instead (if it gets done)"
|
||||
};
|
||||
|
||||
return {
|
||||
success: true
|
||||
}
|
||||
};
|
||||
|
||||
static checkParametersBackendInstance(data: string): ParameterReturnedValue {
|
||||
try {
|
||||
parseBackendProviderString(data);
|
||||
// @ts-ignore
|
||||
} catch (e: Error) {
|
||||
return {
|
||||
success: false,
|
||||
message: e.toString()
|
||||
}
|
||||
}
|
||||
|
||||
return {
|
||||
success: true
|
||||
}
|
||||
};
|
||||
}
|
||||
56
src/index.ts
56
src/index.ts
|
|
@ -4,7 +4,9 @@ import { PrismaClient } from '@prisma/client';
|
|||
import Fastify from "fastify";
|
||||
|
||||
import type { ServerOptions, SessionToken, RouteOptions } from "./libs/types.js";
|
||||
import type { BackendInterface } from "./backendimpl/base.js";
|
||||
import type { BackendBaseClass } from "./backendimpl/base.js";
|
||||
|
||||
import { backendProviders } from "./backendimpl/index.js";
|
||||
|
||||
import { route as getPermissions } from "./routes/getPermissions.js";
|
||||
|
||||
|
|
@ -20,6 +22,7 @@ import { route as userCreate } from "./routes/user/create.js";
|
|||
import { route as userRemove } from "./routes/user/remove.js";
|
||||
import { route as userLookup } from "./routes/user/lookup.js";
|
||||
import { route as userLogin } from "./routes/user/login.js";
|
||||
import { connect } from "node:http2";
|
||||
|
||||
const prisma = new PrismaClient();
|
||||
|
||||
|
|
@ -40,7 +43,7 @@ const serverOptions: ServerOptions = {
|
|||
};
|
||||
|
||||
const sessionTokens: Record<number, SessionToken[]> = {};
|
||||
const backends: Record<number, BackendInterface> = {};
|
||||
const backends: Record<number, BackendBaseClass> = {};
|
||||
|
||||
const fastify = Fastify({
|
||||
logger: true
|
||||
|
|
@ -55,6 +58,55 @@ const routeOptions: RouteOptions = {
|
|||
backends: backends
|
||||
};
|
||||
|
||||
console.log("Initializing forwarding rules...");
|
||||
|
||||
const createdBackends = await prisma.desinationProvider.findMany();
|
||||
|
||||
for (const backend of createdBackends) {
|
||||
console.log(`Running init steps for ID '${backend.id}' (${backend.name})`);
|
||||
|
||||
const ourProvider = backendProviders[backend.backend];
|
||||
|
||||
if (!ourProvider) {
|
||||
console.log(" - Error: Invalid backend recieved!");
|
||||
continue;
|
||||
}
|
||||
|
||||
console.log(" - Initializing backend...");
|
||||
|
||||
backends[backend.id] = new ourProvider(backend.connectionDetails);
|
||||
const ourBackend = backends[backend.id];
|
||||
|
||||
if (!await ourBackend.start()) {
|
||||
console.log(" - Error initializing backend!");
|
||||
console.log(" - " + ourBackend.logs.join("\n - "));
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
console.log(" - Initializing clients...");
|
||||
|
||||
const clients = await prisma.forwardRule.findMany({
|
||||
where: {
|
||||
destProviderID: backend.id,
|
||||
enabled: true
|
||||
}
|
||||
});
|
||||
|
||||
for (const client of clients) {
|
||||
if (client.protocol != "tcp" && client.protocol != "udp") {
|
||||
console.error(` - Error: Client with ID of '${client.id}' has an invalid protocol! (must be either TCP or UDP)`);
|
||||
continue;
|
||||
}
|
||||
|
||||
ourBackend.addConnection(client.sourceIP, client.sourcePort, client.destPort, client.protocol);
|
||||
}
|
||||
|
||||
console.log("Init successful.");
|
||||
}
|
||||
|
||||
console.log("Done.");
|
||||
|
||||
getPermissions(routeOptions);
|
||||
|
||||
backendCreate(routeOptions);
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
import type { PrismaClient } from "@prisma/client";
|
||||
import type { FastifyInstance } from "fastify";
|
||||
|
||||
import type { BackendInterface } from "../backendimpl/base.js";
|
||||
import type { BackendBaseClass } from "../backendimpl/base.js";
|
||||
|
||||
export type ServerOptions = {
|
||||
isSignupEnabled: boolean;
|
||||
|
|
@ -24,5 +24,5 @@ export type RouteOptions = {
|
|||
tokens: Record<number, SessionToken[]>,
|
||||
|
||||
options: ServerOptions,
|
||||
backends: Record<number, BackendInterface>
|
||||
backends: Record<number, BackendBaseClass>
|
||||
};
|
||||
Loading…
Add table
Add a link
Reference in a new issue